Dental-film-drying apparatus.



J. -L. GARRETSON.

DENTAL FILM DRYING APPARATUS.

APPLICATION FILED MAR. 8, 191a Patented Jzin.21,1919

amen Wm I a? d g/53 i. arrei$on TED STATES PATENT FFTCE.

JOHN L. GARRETSON, or BUFFALO, NEW YORK, ASSIGNOR T0 HARRY r. WAITE, orNEW YORK, N. Y.

DENTAL-FILM-DRYING APPARATUS.

Specification of Ietters Patent.

Patented Jan. 21, 1919.

Application filed March 8, 1918. Serial No. 221,314.

To all whom it may concern:

Be it known that I, JOHN L. GARRE'rsoN, a citizen of the United States,and a resident of the city of Buffalo, county of Erie, and State of NewYork, have invented a new and useful Improvement in Dental-Filnr DryingApparatus, of which the following is a specification.

The object of my invention is to provide a simple and eificient devicewhich will dry a dental film in a very short period of time, and do sowithout injury. This object is accomplished by my invention, oneembodiment of which is hereinafter particularly set forth.

For a more particular description of my invention, reference is .to behad to the accompanying drawings, in which Figure 1 is a front elevationof one embodiment of my invention, and

Figs. 2, 3 and 4 are sectional views taken on the lines, 22, 3-3, and 14of Fig. 1.

Throughout the various views of the drawings, similar referencecharacters designate similar parts.

My improved device 1 consists of a fan blade 2, or similar device, onwhich is mounted a shoulder 3 against which a film 4 is adapted to restat its outer end while its sides are between guides 5 and its inner endCopies of this patent may be obtained for five cents each, by addressingthe under a bar 6 secured to the blade in any suitable Way.

When in this position the film 4 is r0- tated about the axis of the fan,of which the blade 2 is a part, and dried both by centrifugal force andfresh air. The emulsion face of the film at is exposed and away from theblade 2, and this film 4 is soon dried and may then be removed.

While I have shown and described one embodiment of my invention, it isobvious that it is not restricted thereto, but is broad enough to coverall structures that come within the scope of the annexed claims.

What I claim is:

1. A rotating plate with means thereon for holding three edges of adental film, whereby the film is held in a suitable position for dryingwhile the plate is rotated at a high speed.

2. In a device of the class described, a rotatable plate with a shoulderin combination with guides and a bar thereon for bold ing a dental filmso that when the plate is rotated, the film will be dried.

Signed at the city of Buffalo, county of Erie, and State of New York,this 4th day of March, 1918.

JOHN L. GARRETSON.

Commissioner of Patents,

Washington, D. G.

